PowerReadDCDefaultIndex

// POWRPROF.dll
#include <windows.h>

DWORD PowerReadDCDefaultIndex(
    HKEY RootPowerKey,   // optional
    const GUID* SchemePersonalityGuid,
    const GUID* SubGroupOfPowerSettingsGuid,   // optional
    const GUID* PowerSettingGuid,
    DWORD* DcDefaultIndex
);

<DllImport("POWRPROF.dll", ExactSpelling:=True)>
Public Shared Function PowerReadDCDefaultIndex(
    RootPowerKey As IntPtr,   ' HKEY optional
    ByRef SchemePersonalityGuid As Guid,   ' GUID*
    SubGroupOfPowerSettingsGuid As IntPtr,   ' GUID* optional
    ByRef PowerSettingGuid As Guid,   ' GUID*
    <Out> ByRef DcDefaultIndex As UInteger   ' DWORD* out
) As UInteger
End Function

' RootPowerKey : HKEY optional
' SchemePersonalityGuid : GUID*
' SubGroupOfPowerSettingsGuid : GUID* optional
' PowerSettingGuid : GUID*
' DcDefaultIndex : DWORD* out
Declare PtrSafe Function PowerReadDCDefaultIndex Lib "powrprof" ( _
    ByVal RootPowerKey As LongPtr, _
    ByVal SchemePersonalityGuid As LongPtr, _
    ByVal SubGroupOfPowerSettingsGuid As LongPtr, _
    ByVal PowerSettingGuid As LongPtr, _
    ByRef DcDefaultIndex As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PowerReadDCDefaultIndex = ctypes.windll.powrprof.PowerReadDCDefaultIndex
PowerReadDCDefaultIndex.restype = wintypes.DWORD
PowerReadDCDefaultIndex.argtypes = [
    wintypes.HANDLE,  # RootPowerKey : HKEY optional
    ctypes.c_void_p,  # SchemePersonalityGuid : GUID*
    ctypes.c_void_p,  # SubGroupOfPowerSettingsGuid : GUID* optional
    ctypes.c_void_p,  # PowerSettingGuid : GUID*
    ctypes.POINTER(wintypes.DWORD),  # DcDefaultIndex : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('POWRPROF.dll')
PowerReadDCDefaultIndex = Fiddle::Function.new(
  lib['PowerReadDCDefaultIndex'],
  [
    Fiddle::TYPE_VOIDP,  # RootPowerKey : HKEY optional
    Fiddle::TYPE_VOIDP,  # SchemePersonalityGuid : GUID*
    Fiddle::TYPE_VOIDP,  # SubGroupOfPowerSettingsGuid : GUID* optional
    Fiddle::TYPE_VOIDP,  # PowerSettingGuid : GUID*
    Fiddle::TYPE_VOIDP,  # DcDefaultIndex : DWORD* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "powrprof")]
extern "system" {
    fn PowerReadDCDefaultIndex(
        RootPowerKey: *mut core::ffi::c_void,  // HKEY optional
        SchemePersonalityGuid: *const GUID,  // GUID*
        SubGroupOfPowerSettingsGuid: *const GUID,  // GUID* optional
        PowerSettingGuid: *const GUID,  // GUID*
        DcDefaultIndex: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("POWRPROF.dll")]
public static extern uint PowerReadDCDefaultIndex(IntPtr RootPowerKey, ref Guid SchemePersonalityGuid, IntPtr SubGroupOfPowerSettingsGuid, ref Guid PowerSettingGuid, out uint DcDefaultIndex);
"@
$api = Add-Type -MemberDefinition $sig -Name 'POWRPROF_PowerReadDCDefaultIndex' -Namespace Win32 -PassThru
# $api::PowerReadDCDefaultIndex(RootPowerKey, SchemePersonalityGuid, SubGroupOfPowerSettingsGuid, PowerSettingGuid, DcDefaultIndex)

#uselib "POWRPROF.dll"
#func global PowerReadDCDefaultIndex "PowerReadDCDefaultIndex" sptr, sptr, sptr, sptr, sptr
; PowerReadDCDefaultIndex RootPowerKey, varptr(SchemePersonalityGuid), varptr(SubGroupOfPowerSettingsGuid), varptr(PowerSettingGuid), varptr(DcDefaultIndex)   ; 戻り値は stat
; RootPowerKey : HKEY optional -> "sptr"
; SchemePersonalityGuid : GUID* -> "sptr"
; SubGroupOfPowerSettingsGuid : GUID* optional -> "sptr"
; PowerSettingGuid : GUID* -> "sptr"
; DcDefaultIndex : DWORD* out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	powrprof = windows.NewLazySystemDLL("POWRPROF.dll")
	procPowerReadDCDefaultIndex = powrprof.NewProc("PowerReadDCDefaultIndex")
)

// RootPowerKey (HKEY optional), SchemePersonalityGuid (GUID*), SubGroupOfPowerSettingsGuid (GUID* optional), PowerSettingGuid (GUID*), DcDefaultIndex (DWORD* out)
r1, _, err := procPowerReadDCDefaultIndex.Call(
	uintptr(RootPowerKey),
	uintptr(SchemePersonalityGuid),
	uintptr(SubGroupOfPowerSettingsGuid),
	uintptr(PowerSettingGuid),
	uintptr(DcDefaultIndex),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function PowerReadDCDefaultIndex(
  RootPowerKey: THandle;   // HKEY optional
  SchemePersonalityGuid: PGUID;   // GUID*
  SubGroupOfPowerSettingsGuid: PGUID;   // GUID* optional
  PowerSettingGuid: PGUID;   // GUID*
  DcDefaultIndex: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'POWRPROF.dll' name 'PowerReadDCDefaultIndex';

result := DllCall("POWRPROF\PowerReadDCDefaultIndex"
    , "Ptr", RootPowerKey   ; HKEY optional
    , "Ptr", SchemePersonalityGuid   ; GUID*
    , "Ptr", SubGroupOfPowerSettingsGuid   ; GUID* optional
    , "Ptr", PowerSettingGuid   ; GUID*
    , "Ptr", DcDefaultIndex   ; DWORD* out
    , "UInt")   ; return: DWORD

●PowerReadDCDefaultIndex(RootPowerKey, SchemePersonalityGuid, SubGroupOfPowerSettingsGuid, PowerSettingGuid, DcDefaultIndex) = DLL("POWRPROF.dll", "dword PowerReadDCDefaultIndex(void*, void*, void*, void*, void*)")
# 呼び出し: PowerReadDCDefaultIndex(RootPowerKey, SchemePersonalityGuid, SubGroupOfPowerSettingsGuid, PowerSettingGuid, DcDefaultIndex)
# RootPowerKey : HKEY optional -> "void*"
# SchemePersonalityGuid : GUID* -> "void*"
# SubGroupOfPowerSettingsGuid : GUID* optional -> "void*"
# PowerSettingGuid : GUID* -> "void*"
# DcDefaultIndex : DWORD* out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。

const std = @import("std");

extern "powrprof" fn PowerReadDCDefaultIndex(
    RootPowerKey: ?*anyopaque, // HKEY optional
    SchemePersonalityGuid: [*c]GUID, // GUID*
    SubGroupOfPowerSettingsGuid: [*c]GUID, // GUID* optional
    PowerSettingGuid: [*c]GUID, // GUID*
    DcDefaultIndex: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) u32;

proc PowerReadDCDefaultIndex(
    RootPowerKey: pointer,  # HKEY optional
    SchemePersonalityGuid: ptr GUID,  # GUID*
    SubGroupOfPowerSettingsGuid: ptr GUID,  # GUID* optional
    PowerSettingGuid: ptr GUID,  # GUID*
    DcDefaultIndex: ptr uint32  # DWORD* out
): uint32 {.importc: "PowerReadDCDefaultIndex", stdcall, dynlib: "POWRPROF.dll".}

pragma(lib, "powrprof");
extern(Windows)
uint PowerReadDCDefaultIndex(
    void* RootPowerKey,   // HKEY optional
    GUID* SchemePersonalityGuid,   // GUID*
    GUID* SubGroupOfPowerSettingsGuid,   // GUID* optional
    GUID* PowerSettingGuid,   // GUID*
    uint* DcDefaultIndex   // DWORD* out
);

ccall((:PowerReadDCDefaultIndex, "POWRPROF.dll"), stdcall, UInt32,
      (Ptr{Cvoid}, Ptr{GUID}, Ptr{GUID}, Ptr{GUID}, Ptr{UInt32}),
      RootPowerKey, SchemePersonalityGuid, SubGroupOfPowerSettingsGuid, PowerSettingGuid, DcDefaultIndex)
# RootPowerKey : HKEY optional -> Ptr{Cvoid}
# SchemePersonalityGuid : GUID* -> Ptr{GUID}
# SubGroupOfPowerSettingsGuid : GUID* optional -> Ptr{GUID}
# PowerSettingGuid : GUID* -> Ptr{GUID}
# DcDefaultIndex : DWORD* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t PowerReadDCDefaultIndex(
    void* RootPowerKey,
    void* SchemePersonalityGuid,
    void* SubGroupOfPowerSettingsGuid,
    void* PowerSettingGuid,
    uint32_t* DcDefaultIndex);
]]
local powrprof = ffi.load("powrprof")
-- powrprof.PowerReadDCDefaultIndex(RootPowerKey, SchemePersonalityGuid, SubGroupOfPowerSettingsGuid, PowerSettingGuid, DcDefaultIndex)
-- RootPowerKey : HKEY optional
-- SchemePersonalityGuid : GUID*
-- SubGroupOfPowerSettingsGuid : GUID* optional
-- PowerSettingGuid : GUID*
-- DcDefaultIndex : DWORD* out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('POWRPROF.dll');
const PowerReadDCDefaultIndex = lib.func('__stdcall', 'PowerReadDCDefaultIndex', 'uint32_t', ['void *', 'void *', 'void *', 'void *', 'uint32_t *']);
// PowerReadDCDefaultIndex(RootPowerKey, SchemePersonalityGuid, SubGroupOfPowerSettingsGuid, PowerSettingGuid, DcDefaultIndex)
// RootPowerKey : HKEY optional -> 'void *'
// SchemePersonalityGuid : GUID* -> 'void *'
// SubGroupOfPowerSettingsGuid : GUID* optional -> 'void *'
// PowerSettingGuid : GUID* -> 'void *'
// DcDefaultIndex : DWORD* out -> 'uint32_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("POWRPROF.dll", {
  PowerReadDCDefaultIndex: { parameters: ["pointer", "pointer", "pointer", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.PowerReadDCDefaultIndex(RootPowerKey, SchemePersonalityGuid, SubGroupOfPowerSettingsGuid, PowerSettingGuid, DcDefaultIndex)
// RootPowerKey : HKEY optional -> "pointer"
// SchemePersonalityGuid : GUID* -> "pointer"
// SubGroupOfPowerSettingsGuid : GUID* optional -> "pointer"
// PowerSettingGuid : GUID* -> "pointer"
// DcDefaultIndex : DWORD* out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t PowerReadDCDefaultIndex(
    void* RootPowerKey,
    void* SchemePersonalityGuid,
    void* SubGroupOfPowerSettingsGuid,
    void* PowerSettingGuid,
    uint32_t* DcDefaultIndex);
C, "POWRPROF.dll");
// $ffi->PowerReadDCDefaultIndex(RootPowerKey, SchemePersonalityGuid, SubGroupOfPowerSettingsGuid, PowerSettingGuid, DcDefaultIndex);
// RootPowerKey : HKEY optional
// SchemePersonalityGuid : GUID*
// SubGroupOfPowerSettingsGuid : GUID* optional
// PowerSettingGuid : GUID*
// DcDefaultIndex : DWORD* out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Powrprof extends StdCallLibrary {
    Powrprof INSTANCE = Native.load("powrprof", Powrprof.class);
    int PowerReadDCDefaultIndex(
        Pointer RootPowerKey,   // HKEY optional
        Pointer SchemePersonalityGuid,   // GUID*
        Pointer SubGroupOfPowerSettingsGuid,   // GUID* optional
        Pointer PowerSettingGuid,   // GUID*
        IntByReference DcDefaultIndex   // DWORD* out
    );
}

@[Link("powrprof")]
lib LibPOWRPROF
  fun PowerReadDCDefaultIndex = PowerReadDCDefaultIndex(
    RootPowerKey : Void*,   # HKEY optional
    SchemePersonalityGuid : GUID*,   # GUID*
    SubGroupOfPowerSettingsGuid : GUID*,   # GUID* optional
    PowerSettingGuid : GUID*,   # GUID*
    DcDefaultIndex : UInt32*   # DWORD* out
  ) : UInt32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef PowerReadDCDefaultIndexNative = Uint32 Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Uint32>);
typedef PowerReadDCDefaultIndexDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Uint32>);
final PowerReadDCDefaultIndex = DynamicLibrary.open('POWRPROF.dll')
    .lookupFunction<PowerReadDCDefaultIndexNative, PowerReadDCDefaultIndexDart>('PowerReadDCDefaultIndex');
// RootPowerKey : HKEY optional -> Pointer<Void>
// SchemePersonalityGuid : GUID* -> Pointer<Void>
// SubGroupOfPowerSettingsGuid : GUID* optional -> Pointer<Void>
// PowerSettingGuid : GUID* -> Pointer<Void>
// DcDefaultIndex : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function PowerReadDCDefaultIndex(
  RootPowerKey: THandle;   // HKEY optional
  SchemePersonalityGuid: PGUID;   // GUID*
  SubGroupOfPowerSettingsGuid: PGUID;   // GUID* optional
  PowerSettingGuid: PGUID;   // GUID*
  DcDefaultIndex: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'POWRPROF.dll' name 'PowerReadDCDefaultIndex';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "PowerReadDCDefaultIndex"
  c_PowerReadDCDefaultIndex :: Ptr () -> Ptr () -> Ptr () -> Ptr () -> Ptr Word32 -> IO Word32
-- RootPowerKey : HKEY optional -> Ptr ()
-- SchemePersonalityGuid : GUID* -> Ptr ()
-- SubGroupOfPowerSettingsGuid : GUID* optional -> Ptr ()
-- PowerSettingGuid : GUID* -> Ptr ()
-- DcDefaultIndex : DWORD* out -> Ptr Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let powerreaddcdefaultindex =
  foreign "PowerReadDCDefaultIndex"
    ((ptr void) @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> (ptr uint32_t) @-> returning uint32_t)
(* RootPowerKey : HKEY optional -> (ptr void) *)
(* SchemePersonalityGuid : GUID* -> (ptr void) *)
(* SubGroupOfPowerSettingsGuid : GUID* optional -> (ptr void) *)
(* PowerSettingGuid : GUID* -> (ptr void) *)
(* DcDefaultIndex : DWORD* out -> (ptr uint32_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library powrprof (t "POWRPROF.dll"))
(cffi:use-foreign-library powrprof)

(cffi:defcfun ("PowerReadDCDefaultIndex" power-read-dcdefault-index :convention :stdcall) :uint32
  (root-power-key :pointer)   ; HKEY optional
  (scheme-personality-guid :pointer)   ; GUID*
  (sub-group-of-power-settings-guid :pointer)   ; GUID* optional
  (power-setting-guid :pointer)   ; GUID*
  (dc-default-index :pointer))   ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $PowerReadDCDefaultIndex = Win32::API::More->new('POWRPROF',
    'DWORD PowerReadDCDefaultIndex(HANDLE RootPowerKey, LPVOID SchemePersonalityGuid, LPVOID SubGroupOfPowerSettingsGuid, LPVOID PowerSettingGuid, LPVOID DcDefaultIndex)');
# my $ret = $PowerReadDCDefaultIndex->Call($RootPowerKey, $SchemePersonalityGuid, $SubGroupOfPowerSettingsGuid, $PowerSettingGuid, $DcDefaultIndex);
# RootPowerKey : HKEY optional -> HANDLE
# SchemePersonalityGuid : GUID* -> LPVOID
# SubGroupOfPowerSettingsGuid : GUID* optional -> LPVOID
# PowerSettingGuid : GUID* -> LPVOID
# DcDefaultIndex : DWORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。